Ron the Hardee's manager says that our ancestors had to eat tree bark for survival. Luckily for us, we don't have to do such a thing. Made with fire and 100-percent black Angus beef, the Thickburger is said to be the future compared to the sap-covered dinners of yesteryear. For a limited time, Hardee's encourages burger-loving members of the future to try its grilled cheese bacon Thickburger.